ProgramNode(0...13)(
  [],
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    [CallNode(0...13)(
       nil,
       nil,
       (0...1),
       (1...2),
       ArgumentsNode(2...12)(
         [StringNode(2...6)((2...3), (3...5), (5...6), "\n"),
          TrueNode(8...12)()]
       ),
       (12...13),
       nil,
       0,
       "a"
     )]
  )
)
